jQuery San Francisco Conference, June 28-29 2012—
The jQuery core team have announced the latest in their line of jQuery conferences. It's in downtown SF in late June. Want to speak? The CFP is open until May 13, and you can even recommend other people if you don't want to speak yourself.

Introduction to JavaScript Source Maps—
Want to keep your client-side code readable and easily debuggable even after you've combined and minified it, without impacting performance? Now you can through the magic of source maps. Ryan Seddon shows us how.

A Google Maps Debugging Session—
Hallvord R. M. Steen gives us an extended tour of a debugging session he had with Google Maps' codebase. Deep stuff. Grab a coffee!

We Work at Microsoft and We Use Node.js—
Yep, Microsoft seems to be a big fan of Node.js (and has worked hard getting the Windows version running well). In this post, Elad Ben-Israel shares some of what MS is doing, and there's a Channel 9 interview to watch too.

Trevor Burnham has unveiled an e-book all about asynchronous and event driven concepts in JavaScript, such as promises and deferreds, async.js, and Web Workers. It costs $9.99 and comes in PDF, EPUB and Mobi/Kindle formats. (Disclaimer: I have no financial connection but I did review the book in beta.)

JSON 3: ECMAScript 5 Compliant JSON For All—
JSON 3 is an ECMAScript 5-compliant JSON implementation. Its objective is to provide a reasonably fast library compatible with a variety of older environments (acting as a polyfill).

Hammer.js: Multi-touch Gestures Library—
It seems you can touch this. Hammer.js is a small multi-touch gesture library that supports tap, double tap, drag and more. It depends on jQuery and has pretty good cross browser support.

Electric Potential Pong—
A simple pong game built in Processing.js (with source). The twist is the ball is influenced by an electrical field in the background. Worth it to get a look at some processing.js source at least.

Water: A Visual, Live Coding/Updating Demo—
Have you seen Bret Victor's awesome Inventing on Principle talk? No? Gasp! Well, never fear, enjoy this implementation of his live updating coding idea by Gabriel Florit. Change the code and see the effects live.